fa39b6b5b1
Like the existing error() function the new warn() function can be used to describe a situation that probably should not be occuring, but which the user (and Git) can continue to work around without running into too many problems. An example situation is a bad commit SHA1 found in a reflog. Attempting to read this record out of the reflog isn't really an error as we have skipped over it in the past. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
97 lines
1.9 KiB
C
97 lines
1.9 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "git-compat-util.h"
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static void report(const char *prefix, const char *err, va_list params)
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{
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fputs(prefix, stderr);
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vfprintf(stderr, err, params);
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fputs("\n", stderr);
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}
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static NORETURN void usage_builtin(const char *err)
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{
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fprintf(stderr, "usage: %s\n", err);
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exit(129);
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}
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static NORETURN void die_builtin(const char *err, va_list params)
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{
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report("fatal: ", err, params);
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exit(128);
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}
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static void error_builtin(const char *err, va_list params)
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{
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report("error: ", err, params);
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}
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static void warn_builtin(const char *warn, va_list params)
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{
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report("warning: ", warn, params);
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}
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/* If we are in a dlopen()ed .so write to a global variable would segfault
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* (ugh), so keep things static. */
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static void (*usage_routine)(const char *err) NORETURN = usage_builtin;
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static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin;
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static void (*error_routine)(const char *err, va_list params) = error_builtin;
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static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
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void set_usage_routine(void (*routine)(const char *err) NORETURN)
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{
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usage_routine = routine;
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}
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void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)
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{
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die_routine = routine;
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}
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void set_error_routine(void (*routine)(const char *err, va_list params))
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{
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error_routine = routine;
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}
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void set_warn_routine(void (*routine)(const char *warn, va_list params))
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{
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warn_routine = routine;
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}
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void usage(const char *err)
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{
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usage_routine(err);
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}
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void die(const char *err, ...)
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{
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va_list params;
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va_start(params, err);
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die_routine(err, params);
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va_end(params);
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}
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int error(const char *err, ...)
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{
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va_list params;
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va_start(params, err);
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error_routine(err, params);
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va_end(params);
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return -1;
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}
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void warn(const char *warn, ...)
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{
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va_list params;
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va_start(params, warn);
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warn_routine(warn, params);
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va_end(params);
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}
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